Colorful Crochet Bikinis Top Free Pattern - Summer Crop Top

This crochet bikinis top and crop top pattern is designed around a classic triangle cup shape that adapts easily to different body sizes and style preferences. The structure uses simple double crochet blocks and strategic chain spaces, making it easy to resize while maintaining a clean and balanced look. You can keep it minimal for swimwear or extend the length for a comfortable everyday crop top.

Crochet Bikinis Crop Top

With adjustable straps, flexible cup sizing, and the option to play with bold color changes, this pattern works beautifully for summer outfits, beachwear, layering pieces, and festival looks.

Materials

Yarn in three colors suitable for bikini or crop tops
2.5 mm crochet hook for the main body
3.5 mm crochet hook for straps using double yarn
Scissors
Measuring tape
Lighter for sealing yarn ends if using synthetic yarn

Triangle Cups Construction

Start with a magic ring
Chain 3 to count as the first double crochet and chain 1 for spacing
Work 3 double crochets into the ring
Chain 2 to form the top corner of the triangle
Work 3 double crochets into the ring
Chain 1 and place 1 double crochet to finish the first row
Turn your work
Begin the next row by working 1 single crochet into the first stitch
Chain 2 to count as the first double crochet
Chain 1 for spacing
Work 3 double crochets into the first chain space
Chain 1
In the center chain 2 space, work 3 double crochets, chain 2, then 3 double crochets
Chain 1

Work 3 double crochets into the next chain space
Chain 1
Finish the row with 1 double crochet into the top of the turning chain
Turn the work
Continue repeating this row structure
Always work blocks of 3 double crochets separated by 1 chain along the sides
Always work 3 double crochets, chain 2, and 3 double crochets at the top point
Change colors every two rows if desired
Complete 6 rows to form the center triangle section

Increasing the Cup Size

After the first 6 rows, continue repeating the same pattern
Each new row naturally increases the triangle size
Keep the sides straight by maintaining the block spacing
Measure the triangle against your bust as you work
Stop increasing when the cup fully covers the bust area
The reference size uses a total of 11 rows, but you may add or reduce rows as needed

Making the Second Cup

Repeat the entire triangle process to create a second identical cup
Make sure both cups have the same number of rows
Check that both triangles are symmetrical in size and shape

Joining the Cups

With the right side facing, begin a new row on the first cup
Work the block pattern across the first triangle as usual
When you reach the inner edge of the first cup, insert the hook into the top chain of the second cup
Pull the yarn through to connect the cups
Continue working the same block pattern across the second triangle
Finish the row normally
The cups are now joined at the center

Bottom Body Extension

Turn the work so you are crocheting along the bottom edge of the joined cups
Attach yarn at one end
Work groups of 3 double crochets separated by 1 chain across the entire bottom edge
Turn the work at the end of the row
Repeat the same block pattern for additional rows
Continue adding rows until you reach your desired length
Fewer rows create a bikini top
More rows create a longer crop top